-ey a-a a-b aaa aab aae aan aao aap aay ab- aba abb abe abn abo abp aby aea aeb aee aen aeo aep aey an- ana anb ane ann ano anp any aoa aob aoe aon aoo aop ap- apa apb ape apn apo app apy ay- aya aye ayn ayo ayp b-p baa bab bae ban bao bap bay bba bbb bbe bbn bbo bbp bby be- bea beb bee ben beo bep bey bna bnb bne bnn bno bnp boa bob boe bon boo bop boy bpa bpb bpe bpn bpo bpp bpy by- bya bye byn byo byp eaa eab eae ean eao eap eba ebb ebe ebn ebo ebp eby eea eeb eee een eeo eep eey en- ena enb ene enn eno enp eny eo- eoa eob eoe eon eoo eop ep- epa epb epe epn epo epp eya eye eyn eyo eyp naa nab nae nan nao nap nay nba nbb nbe nbn nbo nbp ne- nea neb nee nen neo nep ney nna nnb nne nnn nno nnp no- noa nob noe non noo nop noy npa npb npe npn npo npp nya nye nyn nyo nyp nyy oaa oab oae oan oao oap ob- oba obb obe obn obo obp oby oea oeb oee oen oeo oep oey on- ona onb one onn ono onp ony oo- ooa oob oon ooo oop op- opa opb ope opn opo opp opy oya oye oyo p-p paa pab pae pan pao pap pay pba pbb pbe pbn pbo pbp pby pea peb pee pen peo pep pey pn- pna pnb pne pnn pno pnp pny poa pob poe pon poo pop poy ppa ppb ppe ppn ppo ppp py- pya pyb pye pyn pyo yaa yab yae yan yao yap yay ybe ybp yby yea yeb yee yen yeo yep yey yna yne ynn ynp yny yob yoe yon yoo yop yoy ypa ypo yyb yye yyy